Automatic pressure-release for clothes-wringers.



,1. F. HEMENWAY. AUWMATFC PHESSURE RELEASE FOR CLOTHES WRlNGERS.

' APPucAno'wmED SEPT'. 9, me. L25Q1? 1;

Patelitd Dec. 18, 1917 I JOHN F. HEMENWAY, OF NEW YORK, N. Y.

AUTOMATIC PRESSURE-RELEASE FOB CLOTHES-WRINGERS.

Specification of Letters Patent. I Patcntxed D80. 18, 1917.

Application filed September 9, 1916. Serial No. 119,177.

I '0 allwkom it may concern:

Be it known that 1, JOHN F. HEMENWAY, a citizen of the United States,residing at New York city, in the county of New York and State of NewYork, have invented certain new and useful Improvements in Auto maticPressure-Releases for Clothes-wringers, of which the following is aspecification, reference being had therein to theaccompanying drawing.

This invention relates to automatic pressure release for-clotheswringers, the object being to provide a clothes wringer with a pressurereleasing devicewhich will operate automatically in case of a foreignobject being drawn between the pressure rolls so as to instantaneouslyrelease the pressure thereon. Another object of my invention is toprovide an automatic pressure release which is exceedingly simple andcheap in construction and one which can be readily applied to theordinary form of clothes wringer now in use. a

Another object of my invention is to provide a pressure release in whicha pivoted latch is employed for holding the movably mounted top barcarrying the pressure screws in predetermined position within'the frame,said latch being released by the upward movement to the upper pressureroll.

Other and further objects and advantages of the invention will behereinafter set forth and the novel features thereof defined by theappended claims.

In the accompanying drawings,

Figure 1 is a side elevation of a clothes wringer partly in sectionshowing the application of my improved construction of automaticpressure release thereto;

Fig. 2 is an end view of the same;

Fig. 3 is a top plan view; and Fig. at is a detail perspective view ofthe supporting plate and pivoted latch.

Like numerals of reference refer to like parts in the several figures ofthe drawing.

In the drawing, 1 indicates the frame of an ordinary construction ofclothes wringer which is provided with the usual slotted side bars 2 inwhich are mounted bearings 3 and 4 carrying shafts 5' and 6, providedwith pressure rolls 7 and 8 which are preferably provided with meshinggears inelosed by gear casings ,9. Mounted on the top of the bearings isa pressure barlO which is pref stably to the gear casings 9, and

when the bearings are moved upwardly, the gear casings will be raised atthe same time so as to allow free movement of theupper pressure roll.

Slidably niounted within the slotted portions of the'side bars 2 of thewringer frame, is a bar 11 which carries a bowed pressure spring 12, theends of which'engage the ends of the pressure bar 10 over the bearings4, as clearly shown in Fig. 1. Slidably mounted within the upper portionof the side bars of the wringer frame is a top bar 13 which is slidahlyconnected to the bar 11 by screws 14 which work in bores 15 formed inthe bar 11 as clearly shown in Fig. 1 in order to allow the top bar tomove independent of the bar ll'for the purpose hereinafter fullydescribed.

The top bar 13 is provided with threaded boxes 16 at each end in whichare mounted pressure screws 17, the lower ends of which engage bearings18 secured in the top of the bar 11 as clearly shown in Fig. 1 so -thatwhen the pressure screws are adjusted, the pressure rolls will 'beplaced under the proper tension in order to wring the clothes as theypass between the same.

Secured over the upper end of each of the side bars is a plate 19 whichis provided with offset apertured cars 20 at its lower end which extendinto the slot of the side bar and between which is pivotally mounted theoffset apertured eye 21 of pivoted latch 22 adapted to exten t over theupper edge of the plate and en 'a'ge a wear plate 23 secured to the topof the top bar in order to hold the top bar in predetermined positionwithin the wringer frame so that the pressure screws can be adjusted inorder to exert the desired pressure upon the pressure rolls.

Arranged over each end of the upper pressure roll carrying shaft 6 is acap 24 so constructed that the shaft is free to rotate therein, said caphaving a vertically disposed channel stem 25, the web of which is cutaway and the upper ends enlarged and rounded to form cam portions 26adapted to cooperate with cam lips 27 formed on the sides of the pivotedlatch 22 so that when the upper pressure roll is moved a predetermineddistance, the pivoted latches will be drawn outwardly out of the path ofthe top bar so as to allow the top bar to move vertically to releasethe'pressure on the pressure rolls. The upper portion of the stem 25 ismounted in. guidelugs 28 formed on the 1 have shown the stem of thestern below the cutout portion so that plate 19 as clearl'i siovvn inthe pivoted latches are normally held in the path-oi travel of the topbar so as held the same in its proper position within the Wring'er frameso that the pressure screws carried thereby can be adjusted so as tojust the pressure means in the construction of inger. herein shovvn towhich have applied my improved construction of automatic pressurerelease, show pressure means in the form of a bowed spring, but it is,of course, understood that the ordinary form of? coil springs could beused, and 1 do not Wish to limit myself to any particular constructionoi clothes Wrihger, as my invention is capable of being applied to anyform of clothes vvringer in. which a movably mounted top bar is curployed carrying; pressure screws for adjnsh his the pressure means.

lin the construction of pivoted latch and the releasing member hereinshown carried by the upper pressure roll carrying shaft, l bifurcated atits upper end to receive the pivoted latch which WOZlQS between thefur-cations thereof and is provided with cam lips arranged in the pathof travel of the camehapcd ends of the stem so that when the stems movevertically, the

latches will be moved laterally out of path of the top bar.

In the operation of the pressure release herein shown and described,assuming thet the clothes vringer is shown in F. 1, Q and 8, with thelatches in engagement with the top bar, a foreign object or theoperators hand is accidentally drawn between the pressure rolls, theupper pressure roll is moved vertically beyond the ordinary distance ittravels in allowing clothes to pass between the pressure rolls, and the.stemiof the caps are carried upwardly such a distance that the camfaces thereof are brought into engagement with the cam lips of thepivoted latches so as to force the latches laterally out of the path oftravel of the movably mounted top bar which instantaneously rel ases thepressure means by allovvingthe top bar to move vertically.

1 claim: 1. 'A clothes wring-er, comprising a frame having pressurerolls and pressure means 'T the in the position as arranged in the pathrolis mounted therein movable 9 hers for normally holding said pressuremeans in predetermined positiom and members carried by the shaft of theupper pressure roll" engaging said movable for releasing" said pressuremeans,

3. A clothes Wringer, comprising a frame having pressure rolls andpressure means for said rolls a top bar movably mounted Within saidframe having pressure screws for adjusting said pressure means, movablemembers for holding said top bar in predetermined position within saidframe, and members carried by the" upper pressure roll shaft engagingsaid movable members for releasing said pressure means.

A clothes wringer, comprising a frame having" pressure rolls andpressure meansjt'or said rolls mounted therein, a top barmom ablymounted in said frame having means for adjusting said pressure carriedby the side bars of said frame, pivoted members carried'by said top barfor holding; said top bar in pre-= determined position Within saidframe, said a bifurcated stem embracing said pivoted the cam portions.of-said pivoted members actuated by the abnormal separation of saidrolls for moving said pivoted latches out of engagement with said topbar for releasing said pressure means.

5. A clothes wringer, comprising a-frame having; pressure rolls andpressure means for said rolls, spring actuated retaining members normallmeans in prcdeter; ined position, and members actuated by the verticalmovement of one of said pressure rolls engaging said retaming; membersfor releasing the pressure on said rolls, 8

6. A clothes wringer, comprising a frame having pressure rolls andpressure means for said rolls'mounted therein, a top bar movabiy mountedin said frame having means for adjusting said pressure means, movablymounted latches carried by the side bars of said frame for holdingsaidtop bar in predetermined position therein,-and members of travel ofthe upper pressure roll engaging said movable members on the abnormalseparation of said rolls for moving said movable members out ofengagement with said top bar for releasing said pressure means.

7. A clothes Wringer, comprising a frame having pressure rolls andpressure means for said rolls mounted therein, a top bar movably mountedWithin said frame having means for adjusting said pressure means,pivoted latches carried by the side bars of said frame for holding saidtop bar in predetermined position withinthe frame, and member carried bythe upper pressure roll means, plates too holdin said ressure 99PIVOtQClnlQHibGIs having cam portions, and

shaft engaging said latches for moving said latches out of thepath oftravel of said top bar.

8, 'A clothes Wringer comprising a frame haying pressure rolls andpressure means for said rolls mounted therein, pivoted spring actuatedlatches carried by the side bars of said frame for holding said pressuremeans in predetermined position therein, and members carried by theupper pressure roll shaft engaging said pivoted latches for releasingsaid pressure means. I

9. A clothes wringer, comprising aframe having pressure rolls andpressure means for said rolls mounted therein, a top bar having meansfor adjusting said pressure means, retaining members for holding saidtop bar in predetermined position Within said frame, and membersactuated by the vertical movement of one of said pressure rolls engagingsaid retaining members for moving said retaining members out of the pathof travel of said top bar for releasing said pressure means.

10. A clothes wringer, comprising aframe having slotted side bars,pressure rolls and pressure means for said rolls mounted in said frame,atop bar slidably mounted within the slotted side bars, means carried bysaid top bar for adjusting said pressure means, spring actuated membercarried by the side bars engaging said top bar for hold- I ingsaid topbar in predetermined position within said frame, and members actuated bythe vertical movement of the upper pressure roll for moving said springactuated members out of the path of travel of said top bar for releasingsaid pressure means.

11. A clothes wringer comprising a frame having pressure rolls andpressure means for said rolls mounted therein, pressure screw carryingmembers movably mounted in said frame, movable members carried by theside bars of said frame for holding said pressure screw carrying membersin predetermined position therein, and members carried by the upperpressure roll shaft engaging said movable members for moving saidmembers out of the path of travelof said pressure screw carryingmembers.

12. A clothes Wringer, comprising a frame having slotted side bars,bearings slidably mounted within said slotted side bars, shafts mountedin said bearings carrying pressure rolls, a top bar movably mountedWithin said side bars, pressure means disposed between said top bar andbearings including a pres sure bar, and a bar carrying a spring engagingsaid pressure bar, a sliding connection between said top bar and springcarrying bar, means carried by said top bar for adjusting said pressuremeans,spring actuated members for holding said top bar in pre eterminedposition Wit in said frame, an members actuated by the vertical movementof the upper pressureroll engaging said spring actuated members formoving said members out of engagement with said top bar for releasingsaid pressure means.

13. A clothes Wringer, comprising a frame having pressure rolls andpressure means for said rolls mounted therein, a top bar movably mountedin said frame having means for adjusting said pressure means, platescarried by the side bars of said frame provided With guideways, pivotedlatches can ried by said plates engaging said top bar, and memberscarried by the upper pressure roll shaft engaging said latches formoving said latches out of the path of travel of said top bar on thevertical movement of said upper pressure roll.

1%. A clothes wrlnger, comprising a frame having pressure rolls andpressure means for said rolls, a movably mounted top bar mounted in saidframe having means for ad- 'justing said pressure means, plates carriedby the side bars of said frame having guideways, latches carried by saidplates for h0lding said top bar in predetermined position Within saidframe, members carried by the upper pressure roll shaft slidably mountedWithin the guideways of said plates and engaging said latches for movingthe said latches out of the path of travel of said top bar on thevertical movement of said pres sure roll.

15. A clothes wringer, comprising a frame having pressure rolls andpressure means for said rolls mounted therein, shafts upon which saidpressure rolls are mounted, a top bar movably mounted in said framehaving means for adjusting said pressure means, pivoted latchescarried'by the side bars of said frame for holding said top bar inpredetermined position within said frame, caps carried by the shaft ofthe upper pressure roll, and stems carried by said caps engaging saidlatches on the upward movement of said pressure roll for releasing saidpressure means.

16. A clothes wringer, comprising a frame having slotted side bars,shafts mounted in said frame carrying pressure rolls, pressure means'forsaid rolls mounted in said frame, a top bar movably mounted in saidframe having means for adjusting said pressure means, movable latchescarried by the side bars of said frame for holding said top bar inpredetermined position Within said frame, and members carried by theshaft of the upper pressure roll engaging said latches on the upwardmovement of said roll for relcasing said pressure means.

17 A clothes Wringer comprising a frame having slotted side bars,bearings mounted in the slots of said side bars, shafts mounted in saidbearings carrying pressure rolls, a top bar movably mounted in saidframe, plates carried by the side bars of the said frame, spring iatchescarried by said pistes for hoiding said top bar in predeterminedposition Within said frame, pressure means mounted in said frame forsaid IOiiS, pressure screws mounted in'the top bar for adjusting saidpressure means, and members carried by the shaft of the upper pressureroii engaging said latches for moving said latches out of the path oftravel of the said top her for releasing said pressure 18. A clothesWringer, comprising a frame having pressure rolls and pressure means forsaid rolls mounted therein, a top bar movably mounted Within said framehavin! means for adjusting said pressure means, plates carried by theside bars of said frame provided with guideways, pivoted latches mountedon said plates for holding said top bar in predetermined position withinsaid rame, said latches being provided with cam portions, and memberscarried by the shaft by the upper pressure X'Oii Working in saidguideways having cam portions coacting with the cam portions of movingsaid istciies out of the path of travel of said top her on the upwardmove ment of said pressure roii.

19, A clothes Wringer, comprising; a frame having slotted side bars,pressure roiis and pressure means for said roiis mountedvvith saidlatches for.

said frame, a top bar movahiy mounted within said jiisting said pressuremeans, spring latches for holding said top bar in predetermined positionwithin said frame, and members carried by the upper pressure r011 shaftengaging said latches for moving said latches out of the path oftraveiof said top bar for releasing said pressure means, i

20. A clothes Wringer, comprising a frame having slotted side bars,pressure rolls mounted in said frame, pressuremeans for said rolls, atop bar movably mounted'in said frame having means for adjusting saidpressure means, pivoted latches carried by the side bars for holdingsaid top bar in predetermined position Within said frame, said latchesbeing provided with cam prtions, springs for holding said latches inengagement With said top. bar, and members carried by the upper pressureroll shaft hav ing cam portions coacting with the cam portions of saidlatches for moving said latches out of the path of said top bar on theup- Werd movement of said pressure roll.

In testimony whereof I hereunto afiix my signature in the presence oftwo Witnesses.

JUHN F. HEMENWAY. Witnesses:

REA P, WRIGHT, Esrn'nn Rosnnnnne.

frame having means for ad.

